The 2018 typically asks 51% less than the 2023 in this snapshot, across 5 model years.
The 2018 BMW M550i asks about 51% less than the 2023 across 5 model years — the curve below tracks every year from 2023 to 2018, priced from 303 live dealer listings.
These are current dealer asking prices for different vehicles, not a forecast, original MSRP comparison or final sale prices. Mileage, trim, condition and generation changes can affect the gap.
◷ Updated September 10, 2026 ▤ National asking prices, refreshed daily
16% of the 2023 price
Across the 2018–2023 model years, 2023 → 2022 is the biggest single-model-year asking-price step in this sample.
Priced from 53 and 43 live listings.
$29,446 below the 2023 ask
A 2018 — five model years older — asks 49% of what the 2023 asks. The Share-of-baseline-ask column in the table below runs the same share for every year.
Priced from 53 and 65 live listings.
Typical asking price by model year, newest on the left — labels compare asking prices with the 2023. Hover a point for that year's price band.
A 2018 BMW M550i typically lists at $27,998 — 51% below the 2023's $57,444.
| Year | Typical price | Share of baseline ask | vs. next-newer year | Avg. mileage | Listings |
|---|---|---|---|---|---|
| 2023 | $57,444 | 100% | — | 40,423 | 53 |
| 2022 | $47,995 | 84% | −$9,449 | 53,216 | 43 |
| 2021 | $41,998 | 73% | −$5,997 | 60,263 | 39 |
| 2020 | $38,297 | 67% | −$3,701 | 63,210 | 49 |
| 2019 | $30,593 | 53% | −$7,704 | 71,985 | 54 |
| 2018 | $27,998 | 49% | −$2,595 | 78,728 | 65 |
Typical price is the median (or average when the median is unavailable) asking price of that model year's live dealer listings, national. Share of baseline ask is each year's asking price as a percentage of the newest year's asking price in the same group of available model years. Updated September 10, 2026.
This snapshot does not measure annual depreciation of one car. The 2018 typically asks $27,998, 51% below the 2023's $57,444. These are different vehicles listed on September 10, 2026; mileage, trim, condition and redesigns can affect the difference.
A 2018 BMW M550i asks about 49% of the 2023's typical asking price ($27,998 vs $57,444). The “Share of baseline ask” column in the table above shows the same share for every model year in between.
The 2018 BMW M550i is the most affordable model year we track, typically listed at $27,998 — 51% below the 2023's typical $57,444. Compare every year in the table above.
This depreciation curve covers 6 model years, from 2018 to 2023, each priced from live dealer listings and refreshed daily.
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.
